Sperm
A) travel at random inside a woman's reproductive tract.
B) find ovum as a matter of luck.
C) are attracted to ova by the odor of a chemical they secrete.
D) are attracted to ova by a sound wave they emit.

Question

Quizplus · Accepted Answer

Sperm are attracted to ova by the odor of a chemical they secrete, which guides them toward the egg for fertilization. This chemotaxis mechanism helps ensure that sperm find their way to the ovum.